Precision Stage Micrometer Calibration Slide
Glass slide with chrome-deposited precision scale pattern used to calibrate microscope stages and optical measuring microscopes. Falls under HTS 9031.90.59.00 as an accessory for other optical measuring instruments. Provides traceable accuracy verification for dimensional measurement systems.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered laboratory glassware rather than measuring accessory
Glass articles for lab use not specifically measuring parts fall to Chapter 70.
If classified as part of specific measuring instruments like 9027
Parts for named instruments in other headings classified there per Chapter 90 note 2(a).
If specifically for test benches
Test bench accessories have separate 9031.90.75 subheading.
Not sure which classification is right?
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Import Tips & Compliance
• Include NIST-traceable certification documentation to prove metrological function
• Avoid classification as laboratory glassware (7017) by emphasizing exclusive measuring instrument use
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Calibration Test Gage Block Holder
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Interferometer Mirror Mount Assembly
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Autocollimator Objective Lens Cell
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Optical Encoder Scale Reader Head
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